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Science study guide
| Question | Answer |
|---|---|
| Newton´s First Law of Motion | An object at rest will stay at rest will remain at rest until acted on by a force and a object at motion will stay in motion util acted on by a force. |
| Newtonś First Law of Motion is also called | The Law of Inertia Example: ball constantly rolling down a hill until a force is acted upon it. |
| Rolling Friction | Friction that occurs between surfaces in motion in which one of the surfaces is a wheel, roller, or ball. Ex: Bowling-ball and lane |
| Static Friction | Friction that occurs when the surfaces in contact are at rest (not in motion). Ex: A book resting on a desk |
| Sliding Friction | Friction that occurs when solid surfaces slide over one another. Example-Writing- pencil point and paper |
| Fluid Friction | Friction that occurs when objects mover across or through a fluid. Example- Swimming- swimmer´s swim against the water |
| Newton´s Second Law of Motion | The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. |
| Newtons Second Law of Motion is also called and is known for | The Law of Force and Acceleration Force= mass x acceleration |
| Air Resistance | is an example of fluid friction caused by the particles that make up air. Example: Skydiving- parachute is slowed down by air resistance. |
| Newton´s Third Law of Motion | For every action there is an equal and opposite reaction. Example: Rocket launching off of a launch pad. |
| Newton´s Third Law of Motion is also known as | The law of action and reaction |
| Calculation for spped | Speed equals distance divided by time speed=distance/time |
| Calculation for velocity | velocity equals displacement divided by time |
| Calculation for acceleration | acceleration equals force divided by mass a = F/m |
| calculation for momentum | momentum equals mass times velocity p=m/v |
| calculation for elastic | Before After p1 + p2 = p1 + p2 m1v1 + m2v2 = m1v1 + m2v2 |
| calculation for Inelastic | p1 + p2 = (m1 + m2)V m1v1 + m2v2 = (m1+m2) Vfinal |
| Calculate Net Force | Net Force = Mass x Acceleration F = m x a |
| Terminal Velocity | maximum velocity reached by a falling object |
| Acceleration due to gravity | In the absence of air resistance, all falling objects have the same acceleration. On Earth: g = 9.8 m/s ² |
Created by:
kiyara.thomas
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